When laying water supply and heating systems, fittings, which are presented in a large assortment today, are necessarily used. They are used to connect at turning points, branches and transitions. These elements are irreplaceable when connecting pipes of different diameters. These nodes can be intended for polypropylene pipes or metal-plastic systems.
Classification of Polypropylene Fittings
If you need a fitting, what is this device, you must know. These elements allow you to lay systems with a large length, allowing for transitions and turns. When it comes to polypropylene fittings, they can be classified by shape. Different types of such elements can form angles, among them it should be distinguished:
- coupling;
- corner;
- tee;
- crosspiece;
- adapter;
- "American";
- collector;
- contour.
Pipelines are connected using fittings, their material should be the same as the pipes themselves. If the system consists of highways reinforced with fiberglass, then other types of products cannot be used.
Fiberglass reinforced polypropylene fittings may also be needed. An exception is the connection of polypropylene products with metal or other materials. In this case, you can use a threaded element of the type of "American".
Classification by location
PVC fittings can also be subdivided according to location. In this regard, it is necessary to highlight the fittings:
- Direct.
- T-shaped.
- Y-shaped.
Fittings can also be classified according to the type of connection, they can be welded or compression. The crimp variety is implemented in the finished kit, there is no need to collect it additionally. If we compare it with a welded joint, then the first has advantages. The key advantages are:
- ease of installation;
- lack of need for welding;
- the ability to install in all weather conditions, as crimp polypropylene fittings are not afraid of exposure to negative temperatures;
- lack of skills needed to assemble crimp fittings.
How to choose welded joint fittings
In a large assortment, a fitting is on sale today. What is and where is this element used, you can find out if you read the article. One of the simplest fittings is the coupling, which is necessary to connect the two ends of the pipeline. It can be used for welding reinforced and conventional pipes.
These works are carried out by the bell method. But among the fittings, one can also distinguish corners, collectors, as well as tees. When choosing a tee, you need to pay attention to the fact that it can be transitional or simple. In the first case, you can switch to a different diameter.
Additional selection tips
If it is necessary to lay a hot or cold water supply system, you should choose a collector that can be used to connect several collectors to a heat source. Sometimes it is supplemented with ball valves, which reliably protect against corrosion.
When a home master needs a fitting, what is it and what types it happens, he must know. For example, to move the pipeline 90 ° you will need a corner. Its welding is carried out by the bell method, these works involve heating the elements and their connection by inserting one into the other.
Steel Fittings Classification
Steel fittings can be divided according to their purpose, they are presented:
- couplings;
- tees;
- fittings;
- adapters;
- plugs.
At the place of use, they can be classified into intermediate and connecting. If it comes to the need to connect pipes of the same diameter, then direct nodes should be used , otherwise you need to stock up on transitional parts. They have a threaded connection.
According to the method of connection, steel fittings should be divided into:
- compression;
- press fittings;
- push fittings;
- crimp;
- threaded.
If you need a fitting, what is this design, you should definitely find out. For example, threaded parts are a traditional way of connecting elements. But compression fittings are the most popular today, because they are easy to install. They can be used to connect pipes of different materials. A universal way are axial fittings that can be used for different types of piping.
Instructions for choosing threaded fittings
Threaded fittings can be made of different materials. If it is brass, then here are the elements that are the most common today. The presence of a clamping ring ensures tightness to any connection. If you want to achieve anti-corrosion properties, you should choose coated fittings, which is necessary when working with plumbing.
If you want to purchase an item at an affordable cost, then copper fittings should be preferred. They do not rust and remain operational for a long time. If you want to change the direction of movement of the medium in the pipeline, then you should purchase tap fittings. But to create a point of dividing one stream into several, you may prefer a tee.
If it is necessary to create a connection of two pipes into a single system, couplings should be used, this element is excellent for arranging a pipeline of different materials. In this case, you can connect a plastic pipe with a copper one. Fittings for copper pipes can also be made of the same material. For example, plugs can tightly close the system and block the end of the pipe. Sometimes this part is used not only as functional parts, but also as a decorative element.
When choosing fittings for copper pipes, you should prefer those that are made of the same material, because they are the most durable, easy to install and reliable. To improve the performance they are covered with special materials, among them:
Fittings Prices
Prices for PVC fittings will vary depending on the purpose of the item. For example, a glue “American” will cost 119 rubles, while a lightweight glue “American” costs 105 rubles. The glue lowering sleeve costs 16 rubles, but the plug is 13 rubles.
If you need PVC fittings, the price of them should interest you. For example, a collector will cost more, its cost is 804 rubles, but a crosspiece costs 91 rubles. Glue clutch will cost 16 rubles. Lowering adhesive coupling costs 33 rubles. Plastic fittings are presented in a wide assortment today, among others it is necessary to highlight a lowering tee, its price is 37 rubles. An angle of 90 ° costs only 9 rubles. a piece.